Re: Simulating sequences

Vilson farias wrote:

> Does PostgreSQL sequences deal with these kinds performance questions? Is it
> clean, fast and secury to use sequences? Maybe I still can make up my boss
> mind about this subject if I get good arguments here to justify the use of
> sequences.

Sorry, but you just outlined a sequence replacement which is a big hunk
of PL/PgSQL! How is that not completely specific to PostgreSQL? The
PgSQL 'serial' type is close enough to other RDBMS autoincrement types
that porting to a different DB should be trivial. Porting your PL/PgSQL,
that will be hard (particularly if you decide to go to something like
MySQL, which doesn't even support procedural languages).

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      | Paul Ramsey
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